The body needs glucose for energy. Cells in the pancreas called beta cells make a hormone called insulin. When blood sugar levels rise, beta cells release insulin into the bloodstream. Insulin then helps move glucose from the blood into other tissues, including muscle and liver cells. There, it is stored as glycogen (a type of sugar). When blood sugar levels drop below a certain point, another hormone signals the beta cells to release stored glycogen back into the bloodstream to raise blood sugar levels again
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